#include "qqmusic.h"

#include <QApplication>

#include <QMessageBox>
#include <QSharedMemory>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    // 创建共享内存
     QSharedMemory sharedMem("QQMusic");
     // 如果共享内存已经被占⽤，说明已经有实例在运⾏
     if (sharedMem.attach()) {
     QMessageBox::information(nullptr, "QQMusic", "QQMusic已经在运⾏...");
     return 0;
     }
     sharedMem.create(1);
    QQMusic w;
    w.show();
    return a.exec();
}
